Finding the Fourth Proportional to 454,128.37, 679,974.34 and 253,878.44
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Solution
The fourth proportional to 454,128.37, 679,974.34 and 253,878.44 is: 380,136.62
Step by Step Solution
- Step 1: Write the proportion equation
454,128.37 : 679,974.34 = 253,878.44 : x - Step 2: Convert to fraction form
454,128.37/679,974.34 = 253,878.44/x - Step 3: Cross multiply
454,128.37x = 679,974.34 × 253,878.44 - Step 4: Simplify right side
454,128.37x = 172,630,824,679.23 - Step 5: Solve for x
x = 172,630,824,679.23/454,128.37 - Step 6: Final answer
x = 380,136.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.